Home / 323,411,418.80-485,117,128.20-118,897,175.60

Finding the Fourth Proportional to 323,411,418.80, 485,117,128.20 and 118,897,175.60

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Solution

The fourth proportional to 323,411,418.80, 485,117,128.20 and 118,897,175.60 is: 178,345,763.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,411,418.80 : 485,117,128.20 = 118,897,175.60 : x
  2. Step 2: Convert to fraction form
    323,411,418.80/485,117,128.20 = 118,897,175.60/x
  3. Step 3: Cross multiply
    323,411,418.80x = 485,117,128.20 × 118,897,175.60
  4. Step 4: Simplify right side
    323,411,418.80x = 57,679,056,378,163,104
  5. Step 5: Solve for x
    x = 57,679,056,378,163,104/323,411,418.80
  6. Step 6: Final answer
    x = 178,345,763.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.